Americans love the best. That's why rankings -- of fast food meals, of mustachioed swordsmen, of everything -- matter so much. Responding to that universal truth, the consumer insights firm Market Force Information has just come out with a new study on the top fast-food operations in the nation. After polling 11,000 customers and compiling scores based on satisfaction with food, service, restaurant experience, and other factors, they ranked the top loyalty scorers the following five culinary categories. Some of them will surprise you.